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(11) | EP 1 780 143 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Container lid of vacuum valve operation type |
(57) A sealed container lid of a vacuum valve operation type is provided, in which an
engagement structure of a silicon packing is simple, and a relatively strong sealing
force is obtained. A process for engaging or disengaging a lid to a container body
may be performed based one-touch method. The sealed contained lid of a vacuum valve
operation type comprises a body which is injection-molded and has a circular groove
formed in a horizontally and outwardly opened shape for an engagement of the silicon
packing, and a downwardly bent peripheral part which is formed at an outer peripheral
part of the body based on a double injection method while surrounding the same.
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